Question: Who is the chief executive officer of Sony starting April 1, 2012?
Paraphrase: Who is the CEO of Sony beginning April 1, 2012?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q41187 p:P169 ?s . ?s ps:P169 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2012')) }